ABSTRACT
Paenibacillus konkukensis sp. nov., SK3146 is a novel strain isolated from a pig feed. Here, we present complete genome sequence of SK3146. The genome consists of a single circular genome measuring 7,968,964 bp in size with an average guanine + cytosine (G+C) content of 53.4%. Genomic annotation revealed that the strain encodes 151 proteins related to hydrolases (EC3), which was higher than those in Bacillus subtilis and Escherichia coli. Diverse kinds of hydrolases including galactosidase, glucosidase, cellulase, lipase, xylanase, and protease were found in the genome of SK3146, coupled with one bacteriocin encoding gene. The complete genome sequence of P. konkukensis SK3146 indicates the immense probiotic potential of the strain with nutrient digestibility and antimicrobial activity functions.
ABSTRACT
A Gram-negative, aerobic, non-motile, non-spore-forming and rod-shaped bacterial strain, designated SK3863T, was isolated from rotten biji (residue remaining after making tofu). This bacterium was characterized in order to determine its taxonomic position by using the polyphasic approach. Strain SK3863T grew well at 25-37 °C on Reasoner's 2A agar plates. On the basis of 16S rRNA gene sequence similarity, strain SK3863T belonged to the family Comamonadaceae and was related to Ottowia beijingensis GCS-AN-3T (96.5â% sequence similarity) and Ottowia pentelensis RB3-7T (96.4â%). Lower sequence similarities (96.2â%) were found to all of the other recognized members of the genus Ottowia. The G+C content of the genomic DNA was 65.8 mol%. The major respiratory lipoquinone was ubiquinone 8 and the major fatty acids were C16â:â1ω6c/C16â:â1ω7c, C16â:â0 and C18â:â1ω7c/C18â:â1ω6c. Strain SK3863T could be differentiated genotypically and phenotypically from the recognized species of the genus Ottowia. The isolate therefore represents a novel species, for which the name Ottowia konkukae sp. nov. is proposed, with the type strain SK3863T (=KCCM 43236T=DSM 105395T).
Subject(s)
Comamonadaceae/classification , Food Microbiology , Phylogeny , Soy Foods/microbiology , Bacterial Typing Techniques , Base Composition , Comamonadaceae/genetics , Comamonadaceae/isolation & purification , DNA, Bacterial/genetics , Fatty Acids/chemistry , Phospholipids/chemistry , RNA, Ribosomal, 16S/genetics , Republic of Korea , Sequence Analysis, DNA , Ubiquinone/chemistryABSTRACT
A Gram-stain-positive, oxidase- and catalase-positive, aerobic, rod-shaped bacterium, designated strain SK-3146T, was isolated from animal feed. Phylogenetic analysis, based on 16S rRNA gene sequence comparisons, revealed that the strain formed a distinct lineage within the genus Paenibacillus that was closely related to Paenibacillusyunnanensis JCM 30953T (98.6â%), Paenibacillusvulneris CCUG 53270T (98.0â%) and Paenibacilluschinjuensis DSM 15045T (96.9â%). Cells were non-motile, endospore-forming and formed milky colonies on NA and R2A agar media. Growth of strain SK-3146T occurred at temperatures of 18-45 °C, at pH 6.0-9.5 and between 0.5-3.0â% NaCl (w/v). The major menaquinone was MK-7, with lesser amounts of MK-6 present. The cell wall peptidoglycan of strain SK-3146T contained meso-diaminopimelic acid. The major fatty acids were anteiso-C15â:â0 and iso-C16â:â0. The major polar lipids were diphosphatidylglycerol and phosphatidylethanolamine. The DNA G+C content was 53.8 mol% and the DNA-DNA hybridization relatedness values between strain SK-3146T and P.yunnanensis JCM 30953T and P.vulneris CCUG 53270T were 26.13±0.8â% and 38.7±0.6â%, respectively. The phenotypic, phylogenetic and chemotaxonomic results indicate that strain SK-3146T represents a novel species of the genus Paenibacillus, for which the name Paenibacillus konkukensis sp. nov. is proposed. The type strain is SK-3146T (=KACC 18876T=LMG 29568T).
Subject(s)
Animal Feed/microbiology , Paenibacillus/classification , Phylogeny , Bacterial Typing Techniques , Cell Wall/chemistry , DNA, Bacterial/genetics , Diaminopimelic Acid/chemistry , Fatty Acids/chemistry , Nucleic Acid Hybridization , Paenibacillus/genetics , Paenibacillus/isolation & purification , Peptidoglycan/chemistry , RNA, Ribosomal, 16S/genetics , Republic of Korea , Sequence Analysis, DNA , Vitamin K 2/analogs & derivatives , Vitamin K 2/chemistryABSTRACT
A Gram-reaction negative, strictly aerobic, non-motile, orange colored, and rod-shaped bacterium (designated BS26(T)) isolated from compost, was characterized by a polyphasic approach to clarify its taxonomic position. Strain BS26(T) was observed to grow optimally at 25-30 °C and at pH 7.0 on R2A and nutrient media. Strain BS26(T) showed ß-glucosidase activity that was responsible for its ability to transform ginsenoside Rb1 (one of the active components of ginseng) to ginsenoside compound-K (C-K). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain BS26(T) belongs to the genus Niabella of family Chitinophagaceae and was most closely related to Niabella soli DSM 19437(T) (94.5% similarity), N. yanshanensis CCBAU 05354(T) (94.3%), and N. aurantiaca DSM 17617(T) (93.8%). The G+C content of genomic DNA was 47.3 mol%. Chemotaxonomic data [predominant isoprenoid quinone-MK-7, major fatty acids-iso-C15:0, iso-C15:1 G, iso-C17:0 3-OH, and summed feature 3 (comprising C16:1 ω7c and/or C16:1 ω6c)] supported the affiliation of strain BS26(T) to the genus Niabella. However, strain BS26(T) could be differentiated genotypically and phenotypically from the recognized species of the genus Niabella. The novel isolate therefore represents a novel species, for which the name Niabella ginsenosidivorans sp. nov. is proposed, with the type strain BS26(T) (=KACC 16620(T) =JCM 18199(T)).
